CN106525918A - Power line clip defect recognition device and method - Google Patents
Power line clip defect recognition device and method Download PDFInfo
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- CN106525918A CN106525918A CN201610938249.6A CN201610938249A CN106525918A CN 106525918 A CN106525918 A CN 106525918A CN 201610938249 A CN201610938249 A CN 201610938249A CN 106525918 A CN106525918 A CN 106525918A
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- power line
- defect
- line clamp
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- dimensional mobile
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/20—Investigating the presence of flaws
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- Chemical Kinetics & Catalysis (AREA)
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- Health & Medical Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a power line clip defect recognition device. The device comprises an impedance analyzer, a three-dimensional mobile platform and an upper computer, the upper computer is connected with the impedance analyzer and the three-dimensional mobile platform separately, a probe of the impedance analyzer is connected with a control shaft of the three-dimensional mobile platform, and the control shaft is used for controlling movement of the probe to measure an impedance signal of a power line clip defect on the three-dimensional mobile platform. A recognition method comprises the steps that feature extraction is conducted by adopting a PCA algorithm, and recognition and classification are conducted on a crack defect through SVM. According to the power line clip defect recognition device, the reliability and the service life of a line clip can be subjected to quantitative detection and evaluation, and therefore the safety of line clip application is guaranteed.
Description
Technical field
The present invention relates to wire clamp technical field, more particularly a kind of power line clamp defect recognizing device and method.
Background technology
Power line clamp as overhead transmission line in a kind of important gold utensil, directly connect with wire in overhead transmission line
Touch, play a part of firm, rest and hang power transmission line.The wire clamp of long service for example suspension clamp, strain clamp, thimble and
Anti-corona shaped cable clamp occurs fracture and buckling phenomenon.The fracture and deformation failure of wire clamp can cause electrical network or transmission line of electricity event
Barrier, causes heavy economic losses.Crack defect is the main cause of power line clamp fracture failure.In order to prevent sending out for such accident
It is raw, reduce economic loss, it is necessary to find the crack defect in power line clamp early.Therefore, power line clamp defect recognition and quantization
Detection is problem demanding prompt solution with the reliability and service life of evaluating wire clamp, but not yet has correlative study report to relate to so far
And power line clamp defect recognition special testing instrument and recognition methods.
The content of the invention
The invention provides a kind of power line clamp defect recognizing device and method, by power line clamp defect recognizing device energy
The impedance signal of power line clamp defect is automatically obtained, the defect of power line clamp can be carried out by power line clamp defect identification method
Identification and classification.
For achieving the above object, the technical scheme is that：
A kind of power line clamp defect recognizing device, including electric impedance analyzer, also including three-dimensional mobile platform and host computer, it is described on
Position machine be connected with electric impedance analyzer and three-dimensional mobile platform respectively, the probe of the electric impedance analyzer and the control of three-dimensional mobile platform
Axle processed is connected, and the control shaft is used to control the movement of probe and is believed with the impedance for measuring power line clamp defect in three-dimensional mobile platform
Number.
Further, the host computer includes display module, logging modle and control module, the control module and control
Axle connects, and the logging modle and display module are connected with electric impedance analyzer.The display module is used to show electric impedance analyzer
The impedance signal for measuring, the logging modle are used to record the impedance signal that electric impedance analyzer is measured.
The method that defect recognition is carried out using above-described power line clamp defect recognizing device, comprises the following steps：
（1）Using the control shaft of PC control three-dimensional mobile platform, probe is made to carry out power line clamp defects detection；
（2）Electric impedance analyzer obtains the impedance signal of each power line clamp defect；
（3）The extraction of characterisitic parameter is carried out to the impedance signal of power line clamp defect using PCA algorithms；
（4）Combination supporting vector machine, sets up the disaggregated model of power line clamp defect, and power line clamp defect is identified.
Further, the characterisitic parameter includes resistance and reactance.
By above-mentioned technical proposal, can with the impedance signal of automatic measurement power line clamp defect, then by PCA algorithms and
The combination of SVMs, sets up the disaggregated model of power line clamp defect, so as to realize the identification to power line clamp defect, passes through
Power line clamp defect recognition, can quantify to detect and evaluate the reliability and service life of wire clamp, so as to ensure wire clamp application
Security.
Description of the drawings
Fig. 1 is the structural representation of power line clamp defect recognizing device.
Fig. 2 is the impedance signal changing trend diagram that embodiment middle impedance analyzer is obtained.
Fig. 3 is the result figure that embodiment carries out feature extraction using PCA algorithms to the impedance signal of power line clamp defect.
Control shaft 1, host computer 2, electric impedance analyzer 3, power line clamp 4, probe 5, three-dimensional mobile platform 6.
Specific embodiment
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention is not limited to following reality
Apply example.
A kind of power line clamp defect recognizing device, including electric impedance analyzer 3, three-dimensional mobile platform 6 and host computer 2, it is upper
Machine 2 is connected with electric impedance analyzer 3 and three-dimensional mobile platform 6 respectively, the control of the probe of electric impedance analyzer 35 and three-dimensional mobile platform 6
Axle processed 1 is connected, and control shaft 1 is used for the movement for controlling probe 5, to measure the impedance of 4 defect of power line clamp in three-dimensional mobile platform 6
Signal.
More specifically, host computer includes display module, logging modle and control module, and control module is connected with control shaft,
For controlling the moving line of the control shaft 1 of three-dimensional mobile platform 6 to X, Y, Z different directions, logging modle and display module with
Electric impedance analyzer 3 connects, and display module is used to show the impedance signal that electric impedance analyzer 3 is measured that logging modle to be used to record resistance
The impedance signal that analysis resistant instrument 3 is measured.
The method that defect recognition is carried out using above-described power line clamp defect recognizing device, comprises the following steps：
（1）Using the control shaft of PC control three-dimensional mobile platform, probe is made to carry out power line clamp defects detection；
（2）Electric impedance analyzer obtains the impedance signal of each power line clamp defect；
（3）The extraction of characterisitic parameter is carried out to the impedance signal of power line clamp defect using PCA algorithms；
（4）Combination supporting vector machine, sets up the disaggregated model of power line clamp defect, and power line clamp defect is identified.
Wherein, step（3）Described characterisitic parameter includes resistance and reactance.
The different length occurred in the present embodiment simulation power line clamp and the crack defect of depth, crackle are a total of 6, point
It is not：1 crackle geometric parameter lookup table of table
The method that defect is identified is comprised the following steps：
（1）Using the control shaft of PC control three-dimensional mobile platform, probe is made to carry out power line clamp defects detection；
（2）Electric impedance analyzer obtains the impedance signal of each power line clamp defect, and the impedance signal changing trend diagram of acquisition is shown in Fig. 2,
As can be seen here：When probe progressively near crackle when, resistance value becomes larger, and starts to diminish to after peaking, until probe movement
Minimum is reached during to Crack Center position.When probe progressively near crackle when, reactance value becomes larger, until probe move to it is scarce
Peak value is reached during sunken center.The crack defect signal of different depth or length has different signal peaks, with crack depth
Also accordingly increase with the increase peak value of length, and reactance signal sensitivity is better than resistance signal；Additionally, length change and depth become
The Signal of Cracks change of change is closely similar；
（3）The extraction of characterisitic parameter is carried out to the impedance signal of power line clamp defect using PCA algorithms, the result of extraction is shown in Fig. 3；
（4）Combination supporting vector machine, according to the resistance and reactance signal characteristic of the length and depth of crackle, can set up power line
The disaggregated model of folder defect, is identified to power line clamp defect.
Claims (4)
1. a kind of power line clamp defect recognizing device, including electric impedance analyzer, it is characterised in that：
Also include three-dimensional mobile platform and host computer, the host computer is connected with electric impedance analyzer and three-dimensional mobile platform respectively,
The probe of the electric impedance analyzer is connected with the control shaft of three-dimensional mobile platform, the control shaft be used for control probe movement with
The impedance signal of power line clamp defect in measurement three-dimensional mobile platform.
2. power line clamp defect recognizing device according to claim 1, including electric impedance analyzer, it is characterised in that：
The host computer includes display module, logging modle and control module, and the control module is connected with control shaft, the note
Record module and display module are connected with electric impedance analyzer.
3. the method for carrying out defect recognition using power line clamp defect recognizing device as claimed in claim 1 or 2, its feature exist
In comprising the following steps：
（1）Using the control shaft of PC control three-dimensional mobile platform, probe is made to carry out power line clamp defects detection；
（2）Electric impedance analyzer obtains the impedance signal of each power line clamp defect；
（3）The extraction of characterisitic parameter is carried out to the impedance signal of power line clamp defect using PCA algorithms；
（4）Combination supporting vector machine, sets up the disaggregated model of power line clamp defect, and power line clamp defect is identified.
4. the method for defect recognition according to claim 3, it is characterised in that：
The characterisitic parameter includes resistance and reactance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938249.6A CN106525918A (en) | 2016-10-25 | 2016-10-25 | Power line clip defect recognition device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610938249.6A CN106525918A (en) | 2016-10-25 | 2016-10-25 | Power line clip defect recognition device and method |
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| Publication Number | Publication Date |
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| CN106525918A true CN106525918A (en) | 2017-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610938249.6A Pending CN106525918A (en) | 2016-10-25 | 2016-10-25 | Power line clip defect recognition device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113902739A (en) * | 2021-11-29 | 2022-01-07 | 广东电网有限责任公司肇庆供电局 | NUT wire clamp defect identification method, device and equipment and readable storage medium |
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Application publication date: 20170322 |